138416920

素因数分解:

$2^3\times 5^1\times {\mathrm{53}}^1\times {\mathrm{109}}^1\times {\mathrm{599}}^1$

素因数の和:772

約数の個数: 64

約数和(自身を含む): 320760000

約数和(自身を除く): 182343080

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 53, 106, 109, 212, 218, 265, 424, 436, 530, 545, 599, 872, 1060, 1090, 1198, 2120, 2180, 2396, 2995, 4360, 4792, 5777, 5990, 11554, 11980, 23108, 23960, 28885, 31747, 46216, 57770, 63494, 65291, 115540, 126988, 130582, 158735, 231080, 253976, 261164, 317470, 326455, 522328, 634940, 652910, 1269880, 1305820, 2611640, 3460423, 6920846, 13841692, 17302115, 27683384, 34604230, 69208460, 138416920]

約数ペア:

[(1, 138416920), (2, 69208460), (4, 34604230), (5, 27683384), (8, 17302115), (10, 13841692), (20, 6920846), (40, 3460423), (53, 2611640), (106, 1305820), (109, 1269880), (212, 652910), (218, 634940), (265, 522328), (424, 326455), (436, 317470), (530, 261164), (545, 253976), (599, 231080), (872, 158735), (1060, 130582), (1090, 126988), (1198, 115540), (2120, 65291), (2180, 63494), (2396, 57770), (2995, 46216), (4360, 31747), (4792, 28885), (5777, 23960), (5990, 23108), (11554, 11980)]